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Cheap flights from Portland, Maine to Louisville from $334

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Louisville departing on 2/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portland, Maine to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:00 am - 3:03 pmPWM-SDF
8h 03m1 stop
American Airlines Logo
4:31 pm - 11:49 pmSDF-PWM
7h 18m1 stop
$334American Airlines
Find Deal
Tue, Feb 17 - Mon, Feb 23
American Airlines Logo
5:20 pm - 9:50 pmPWM-SDF
4h 30m1 stop
American Airlines Logo
7:56 am - 12:00 pmSDF-PWM
4h 04m1 stop
$383American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
Delta Logo
4:50 pm - 9:45 pmPWM-SDF
4h 55m1 stop
Delta Logo
8:20 am - 3:56 pmSDF-PWM
7h 36m2 stops
$392Delta
Find Deal
Tue, Mar 10 - Wed, Mar 11
Delta Logo
2:35 pm - 9:45 pmPWM-SDF
7h 10m2 stops
Delta Logo
6:00 am - 4:15 pmSDF-PWM
10h 15m2 stops
$397Delta
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
5:35 am - 6:00 pmPWM-SDF
12h 25m2 stops
American Airlines Logo
4:31 pm - 10:27 amSDF-PWM
17h 56m1 stop
$400American Airlines
Find Deal
Tue, Feb 17 - Mon, Feb 23
United Airlines Logo
6:00 am - 8:14 pmPWM-SDF
14h 14m2 stops
United Airlines Logo
2:05 pm - 11:20 pmSDF-PWM
9h 15m2 stops
$435United Airlines
Find Deal
Tue, Feb 17 - Mon, Feb 23
American Airlines Logo
5:20 pm - 9:33 pmPWM-SDF
4h 13m1 stop
American Airlines Logo
6:50 am - 12:05 pmSDF-PWM
5h 15m1 stop
$481American Airlines
Find Deal
Mon, Dec 22 - Sun, Jan 18
American Airlines Logo
6:00 am - 9:33 pmPWM-SDF
15h 33m1 stop
American Airlines Logo
1:15 pm - 11:43 pmSDF-PWM
10h 28m2 stops
$566American Airlines
Find Deal
Mon, Dec 22 - Sun, Jan 18
United Airlines Logo
6:46 pm - 2:44 pmPWM-SDF
19h 58m2 stops
United Airlines Logo
8:29 am - 6:50 pmSDF-PWM
10h 21m2 stops
$646United Airlines
Find Deal
Mon, Dec 22 - Sun, Jan 18

American Airlines flights from Portland, Maine to Louisville

Our best American Airlines deals on Portland, Maine to Louisville flight tickets
American Airlines
Feb 17
PWM7:00 amPortland
8h 03m
1 stop
SDF3:03 pmLouisville Intl
Feb 23
SDF4:31 pmLouisville Intl
7h 18m
1 stop
PWM11:49 pmPortland
$334
Find similar
American Airlines
Mar 10
PWM5:20 pmPortland
4h 30m
1 stop
SDF9:50 pmLouisville Intl
Mar 11
SDF7:56 amLouisville Intl
4h 04m
1 stop
PWM12:00 pmPortland
$383
Find similar
American Airlines
Feb 17
PWM5:35 amPortland
12h 25m
2 stops
SDF6:00 pmLouisville Intl
Feb 23
SDF4:31 pmLouisville Intl
17h 56m
1 stop
PWM10:27 amPortland
$400
Find similar

Delta flights from Portland, Maine to Louisville

Our best Delta deals on Portland, Maine to Louisville flight tickets
Delta
Mar 10
PWM4:50 pmPortland
4h 55m
1 stop
SDF9:45 pmLouisville Intl
Mar 11
SDF8:20 amLouisville Intl
7h 36m
2 stops
PWM3:56 pmPortland
$392
Find similar
Delta
Mar 10
PWM2:35 pmPortland
7h 10m
2 stops
SDF9:45 pmLouisville Intl
Mar 11
SDF6:00 amLouisville Intl
10h 15m
2 stops
PWM4:15 pmPortland
$397
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 2, 2025.
Use the filters below to find and compare flights from Portland, Maine to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 2/17

7:00 am-3:03 pm

1 stop8h 03m

Louisville Intl

Mon 2/23

4:31 pm-11:49 pm

1 stop7h 18m

$334

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 3/10

5:20 pm-9:50 pm

1 stop4h 30m

Louisville Intl

Wed 3/11

7:56 am-12:00 pm

1 stop4h 04m

$383

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 3/10

4:50 pm-9:45 pm

1 stop4h 55m

Louisville Intl

Wed 3/11

8:20 am-3:56 pm

2 stops7h 36m

$392

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 3/10

2:35 pm-9:45 pm

2 stops7h 10m

Louisville Intl

Wed 3/11

6:00 am-4:15 pm

2 stops10h 15m

$397

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 2/17

5:35 am-6:00 pm

2 stops12h 25m

Louisville Intl

Mon 2/23

4:31 pm-10:27 am

1 stop17h 56m

$400

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 2/17

6:00 am-8:14 pm

2 stops14h 14m

Louisville Intl

Mon 2/23

2:05 pm-11:20 pm

2 stops9h 15m

$435

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Mon 12/22

5:20 pm-9:33 pm

1 stop4h 13m

Louisville Intl

Sun 1/18

6:50 am-12:05 pm

1 stop5h 15m

$481

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Mon 12/22

6:00 am-9:33 pm

1 stop15h 33m

Louisville Intl

Sun 1/18

1:15 pm-11:43 pm

2 stops10h 28m

$566

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Mon 12/22

6:46 pm-2:44 pm

2 stops19h 58m

Louisville Intl

Sun 1/18

8:29 am-6:50 pm

2 stops10h 21m

$646

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Louisville from

How to get the cheapest flight ticket from Portland, Maine to Louisville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of June, then departing from Portland, Maine during the month January is also very affordable. Most momondo users find prices during this month for around $331.

What is the cheapest day to depart on your flight to Louisville?

On average, the least expensive day to fly to Louisville from Portland, Maine is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $386. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Portland, Maine to Louisville on a Tuesday will generally be more expensive and average around $503. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Louisville?

Our data shows that the cheapest Portland, Maine to Louisville flights are usually those with departure times in the morning. Our users have found flights to Louisville in the morning for as low as $417. In the afternoon is when there is more demand to fly to Louisville, so prices are often more expensive at around $526 per ticket.

When to book flights from Portland, Maine to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Louisville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland, Maine to Louisville (PWM to SDF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Louisville

Direct flights

None
There are no direct flights from Portland, Maine to Louisville. There are no popular flight routes from Portland, Maine to Louisville.
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  • How far is Portland to Louisville Intl by plane?

    A flight from Portland to Louisville Intl will travel around 888.5 mi. By plane, this route typically takes 4h 13m.

  • When did momondo last update prices for flights from Portland Airport to Louisville Intl Airport?

    Prices for flights from Portland Airport to Louisville Intl Airport refresh daily.

  • How many operators does momondo search for flights from Portland Airport to Louisville Intl Airport?

  • How old do you have to be to fly from Portland Airport to Louisville Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Louisville Intl Airport.

  • What documentation or ID do you need to fly to Louisville Intl Airport?

    The travel and health documents you'll need for your trip to Louisville Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Louisville Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland, Maine to Louisville?

Best airlines flying from Portland, Maine to Louisville

Compare and see reviews for airlines that fly from Portland, Maine to Louisville with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $248Free CancellationRating
7.9
8,001 reviews
Search Delta flights
American AirlinesPriceFrom $270Free CancellationRating
7.2
11,034 reviews
Search American Airlines flights
United AirlinesPriceFrom $376Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
SouthwestPriceFrom $387Free CancellationRating
8.0
4,240 reviews
Search Southwest flights

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
West Baden Springs
Bardstown
Jeffersonville
Shepherdsville
New Albany
Elizabeth
Corydon
Charlestown
Springfield
Georgetown
Brandenburg

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Louisville?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Louisville for you.

Can I find flights from Portland to Louisville with flexible booking policies on momondo?

momondo does allow users to show only those flights to Louisville from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to Louisville?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Louisville.

I’m not ready to book a flight from Portland to Louisville right now. Can momondo alert me if prices change?

Price alerts on flights to Louisville from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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